May 19, 2012

VMware PSP and SATP in Plain English

VMware's PSA is awash in abbreviations and options

I am often questioned during my Storage for Virtual Environments seminar presentations about VMware’s Pluggable Storage Architecture (PSA). This system is fairly straightforward and concept: VMware provides native multipathing support for a variety of storage arrays, and allows third parties to substitute their own plug-ins at various points in the stack. But the profusion of acronyms and third-party options makes it difficult for end-users to figure out what is going on.

My “On the Road” Video Recording Kit

Good equipment can make the difference between an amateurish embarrassment and professional production when it comes to video recording. The combination of the Zi8 and my pair of microphones collect good enough source material to keep me in the latter category. Combined with the capabilities of Apple’s iMovie software, I can produce respectable videos anywhere I happen to find myself.

IBM Adds VAAI Support to XIV and SVC

IBM today announced VAAI support for SVC, and promised it for the DS8000 as well

VMware’s vStorage API for Array Integration (VAAI) is one of the most-important storage technology advances of the decade, allowing the ESX to integrate and coordinate operations with supported enterprise storage arrays. IBM was notably absent from the party, but they’ve turned on the VAAI heat, releasing full support for the XIV and SVC and promising DS8000 in the near future.

Back From the Pile: Interesting Links, February 25, 2011

So there it is. Intel’s Light Peak was launched as Thunderbolt in the new Apple MacBook Pro line. What else happened?

Processing and Scheduling Thin Provisioning

Although the core issues with thin provisioning revolve around communication, it presents unique challenges to the storage array as well. We talked about granularity of pages, and the comments for that piece were extremely enlightening. Now let’s consider another key factor: Scheduling.

VMware VAAI Storage Array Support in Plain English

The most exciting enhancements in VMware vSphere 4.1 is the addition of vStorage API for Array Integration (VAAI). This new API allows VMware ESX to offload storage processing functions to capable storage arrays, reducing the workload on the server hardware in introducing new and exciting possibilities for performance and efficiency. VAAI in ESX 4.1 includes three separate capabilities: block zeroing, full copy, and hardware assisted locking.

Storage for Server Virtualization: I Need Numbers

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As I work to build out my Storage for Server Virtualization seminar content, one thing becomes clear: I need numbers. The most-common question at events like this is, “how many people are using this or that?” It’s wrong to answer those questions anecdotally: Although I personally know people using NetApp, EqualLogic, HP, and EMC storage for their ESX environments, does this make them the market leaders? So I’m putting out a call for numbers: Please help me fill in these blanks!

Every Company Is Gunning For Someone Else

Everyone has a target on their backs, but they all aim in different directions

One of the amusing aspects of being self-employed is watching all the giants battle it out. Every company is gunning for someone, but the amazing thing is that they rarely have each other in their sights: NetApp is gunning for EMC who’s more focused on HP who wants to knock off Oracle who’s fixated on IBM. It sounds very “high school romance” but this is deadly-serious business.

Back From the Pile: Interesting Links, October 26, 2010

Here are my shared links from the first half of the week, featuring more Apple stuff along with storage, virtualization, and a storage gorilla!

Back From the Pile: Interesting Links, October 17, 2010

A while back, I started a series called “back from the pile” featuring interesting links from the week. Bonus points if you recognize that title reference! This week’s highlights included lots about NFSv4 and IBM’s new Storwize V7000. Some great networking content, too!